Remove empty YenKSP directory.
Squashed 'YenKSP/' content from commit b24a280

git-subtree-dir: YenKSP
git-subtree-split: b24a280b693be23a9e29cf7b07e00653a425e546
Merge commit '474816fff573950b3d107d9d3c40416d12940574' as 'YenKSP'
Change instructions about YenKSP in README.